Home / 135,642,685.80-203,464,028.70-129,407,111.40

Finding the Fourth Proportional to 135,642,685.80, 203,464,028.70 and 129,407,111.40

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Solution

The fourth proportional to 135,642,685.80, 203,464,028.70 and 129,407,111.40 is: 194,110,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,642,685.80 : 203,464,028.70 = 129,407,111.40 : x
  2. Step 2: Convert to fraction form
    135,642,685.80/203,464,028.70 = 129,407,111.40/x
  3. Step 3: Cross multiply
    135,642,685.80x = 203,464,028.70 × 129,407,111.40
  4. Step 4: Simplify right side
    135,642,685.80x = 26,329,692,227,873,696
  5. Step 5: Solve for x
    x = 26,329,692,227,873,696/135,642,685.80
  6. Step 6: Final answer
    x = 194,110,667.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.